摘要
边界条件预测是地下水数值模拟中的关键问题。本文针对人为边界受自然和人为因素影响,边界流量变化复杂难于预测的问题,讨论了人为边界条件的处理方式和实现方法,并将其应用到具有人为边界的二维潜水含水层系统。预测结果表明,受区内人工开采影响,边界流量呈逐年上升趋势,部分边界由流出边界转化为流入边界,结果符合地下水系统变化趋势,提高了预测精度。
Prediction of boundary conditions is the key issue in numerical simulation of groundwater flow. Disposal method of boundary condition is discussed to deal with the complex flow process on artificial boundary with the influenced by natural and artificial factors and applied to two-dimensional phreatic aquifer system in this paper. The result shows that the amount of lateral flow increased in the prediction period and the partial boundaries changed from outflow boundaries to inflow boundaries. The results accords with development trend of groundwater system and the prediction precision is improved.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2008年第6期12-15,共4页
Hydrogeology & Engineering Geology
基金
"十一五"国家科技支撑计划项目(2006BAB04A07)
国家重点基础研究发展计划(973计划)(2006CB403404)
关键词
地下水
数值模拟
人为边界
滚动预测
groundwater
numerical simulation
artificial boundary
rolling prediction
